Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 years ago. Improve this question I have a very big program that is currently using SWT. The program can be run … Read more
While working with Java, I find it hard to position my main window in the center of the screen when I start the application. Is there any way I can do that? It doesn’t have to be vertically centered, horizontal alignment is the more important goal for me. But vertical alignment is also welcome. 11 … Read more
I’m putting together a Swing application where I often want to replace the contents of a JPanel. To do this, I’m calling removeAll(), then adding my new content, then calling revalidate(). However I’m finding that the old content is still actually visible (though obscured by the the new content). If I add a call to … Read more
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I want the message box to appear immediately after the user changes the value in the textfield. Currently, I need to hit the enter key to get the message box to pop out. Is there anything wrong with my code? textField.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent e) { if (Integer.parseInt(textField.getText())<=0){ JOptionPane.showMessageDialog(null, “Error: Please enter number … Read more
Can someone please explain me what’s the difference between Swing and AWT? Are there any cases where AWT is more useful/advised to use than swing or vice-versa? 9 Answers 9
What’s the correct way to get a JFrame to close, the same as if the user had hit the X close button, or pressed Alt+F4 (on Windows)? I have my default close operation set the way I want, via: setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); It does exactly what I want with the aforementioned controls. This question isn’t about that. … Read more
I have a JPanel to which I’d like to add JPEG and PNG images that I generate on the fly. All the examples I’ve seen so far in the Swing Tutorials, specially in the Swing examples use ImageIcons. I’m generating these images as byte arrays, and they are usually larger than the common icon they … Read more
Several times I’ve been criticized for having suggested the use of the following methods: setPreferredSize setMinimumSize setMaximumSize on Swing components. I don’t see any alternative to their use when I want to define proportions between displayed components. I have been told this: With layouts the answer is always the same: use a suitable LayoutManager I … Read more
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 years ago. The community reviewed whether to reopen this question 5 months ago and left it closed: Original close reason(s) were … Read more